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I am back to Mint 14 Mate after a time with Sabayon, good system but I can't see to keep away from Mint! I have done all the upadtes etc. However I am getting very high cpu usage that grinds the system to a halt. I think it's got to do with Nvidia drivers, the machine is dual boot and Win 7 is smooth and stable but I much prefer Linux.

Hopefully this info from terminal will help - when I issued 'top' command in terminal xorg was running at 74.2% cpu the rest of the processes were as should be.

I would greatly appreciate any help with this, the only solution I have is to log out then back in which corrects the problem but is a pain when working as I use the system for my business.

I managed to figure it out myself in the end. Docky seemed to be the problem, as the system slowed I checked in system monitor and it was running at very high cpu rates 100% Aparently it is not uncommon for Docky to run so high http://wiki.go-docky.com/index.php?title=DebugAnyway I uninstalled Docky and purged it's dependencies in terminal - sudo apt-get purge remove docky

Since then CPU usage has gone down considerably and the system is idling at around 470 mib of ram.